Week 8 - Various Applications of Lasers, Laser Safety and Summary

Total Page:16

File Type:pdf, Size:1020Kb

Week 8 - Various Applications of Lasers, Laser Safety and Summary Laser Fundamentals and Applications - - Unit 9 ... https://onlinecourses.nptel.ac.in/noc19_cy13/uni... X [email protected] ▼ Courses » Laser Fundamentals and Applications Announcements Course Ask a Question Progress FAQ Unit 9 - Week 8 - Various Applications of Lasers, Laser safety and Summary Register for Certification exam Assignment 8 The due date for submitting this assignment has passed. Course As per our records you have not submitted this Due on 2019-03-27, 23:59 IST. outline assignment. How to access 1) A LASER is emitting at a power of 250 mW, which class it should be placed? 1 point the portal I Week 1 - Introduction to II LASERs IIIa Week 2 - IIIb Concept of No, the answer is incorrect. population inversion, Score: 0 2-level, 3-level, Accepted Answers: and 4-level IIIb systems, Components of 2) What is the full form of LASIK? 1 point LASERs Laser assisted in situ keratomileusis Week 3 - Threshold Lamp assisted in situ keratomileusis condition, Unique Light assisted in situ keratomileusis Properties of Light assisted induced keratomileusis LASER, various parameters of a No, the answer is incorrect. LASER Score: 0 Week 4 - Pulsing Accepted Answers: techniques Laser assisted in situ keratomileusis 3) Which of the following is one of the biggest advantage of using ultrashort pulsed laser in 1 point Week 5 - surgical applications? Mode-Locking technique and types of LASER Very less expensive © 2014 NPTEL - Privacy & Terms - Honor Code - FAQs - A project of In association with Funded by 1 of 3 Friday 10 May 2019 10:17 AM Laser Fundamentals and Applications - - Unit 9 ... https://onlinecourses.nptel.ac.in/noc19_cy13/uni... Applications of Accepted Answers:Powered by Lasers: Very low tissue damage Non-linear optics, LIDAR, 4) Which of these laser has the maximum penetration depth in biological tissue system? 1 point Laser spectroscopy, CO laser Isotope 2 enrichment and Nd:YAG laser separation. Ar ion laser Week 8 - Various Excimer lasers Applications of Lasers, Laser No, the answer is incorrect. safety and Score: 0 Summary Accepted Answers: Lecture 36 - Nd:YAG laser Laser Induced 1 Chemistry 5) Which kind of photooxidation involves generation of excited singlet oxygen ( O2*) from 1 point 3 3 triplet oxygen ( O2) through interaction with triplet state of a sensitizer S*? Lecture 37 - Laser Induced Chemistry and Type I photooxidation Ultrafast Type II photooxidation chemical Dynamics Type IIIa photooxidation Lecture 38 - Type IV photooxidation Lasers in Medical No, the answer is incorrect. Sciences Score: 0 Lecture 39 - Accepted Answers: Lasers in Type II photooxidation Material sciences and 6) Which of the following processes does not involve a LASER irradiation? 1 point engineering and Optical LASIK Communications Bar code scanning Lecture 40 - Laser safety Transmission electron microscopy and summary Two photon fluorescence studies Quiz : Assignment 8 No, the answer is incorrect. Score: 0 Feedback For Accepted Answers: Week 8 Transmission electron microscopy Solution for Assignment - 8 7) Which of the following technique is used to probe chemical bond dissociation dynamics? 1 point DOWNLOAD LIDAR VIDEOS laser printing LASIK Femtosecond pump-probe spectroscopy No, the answer is incorrect. Score: 0 Accepted Answers: Femtosecond pump-probe spectroscopy 8) What is the following process called? 1 point ABC+nhn --> ABC* --> ACB* Photo-ionisation Photo-isomerisation 2 of 3 Friday 10 May 2019 10:17 AM Laser Fundamentals and Applications - - Unit 9 ... https://onlinecourses.nptel.ac.in/noc19_cy13/uni... Photo-dissociation None of the above No, the answer is incorrect. Score: 0 Accepted Answers: Photo-isomerisation 9) Identify the transition state of the following chemical reaction. 1 point CH3I + Na --> CH3 +NaI CH2I - - H - - Na CH- - I - - NaH2 CH3 - - I - - Na CHI - - Na - - H2 No, the answer is incorrect. Score: 0 Accepted Answers: CH3 - - I - - Na 10)The study of transition state of chemical reaction using femtosecond Laser was pioneered 1 point by? Ahmed Zewail Richard Bershon C. Bradley Moore Andre Persoons No, the answer is incorrect. Score: 0 Accepted Answers: Ahmed Zewail Previous Page End 3 of 3 Friday 10 May 2019 10:17 AM.
Recommended publications
  • Operators Manual LASER PRINTER 8
    L A S E R PRINTER 8 Operators Manual Safety Notices This printer is certified as a Class 1laser product under the U.S.Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escapefrom the machine during anyphase of user operation. The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administra- tionimplemented regulations forlaserproducts on August 2, 1976.These regulations apply to laser products manufactured from August 1, 1976.Compliance is mandatory for products marketed in the United States. The label on the bottom of the printer indicates currrpliancewith the CDRII regulations and must be attached to laser products marketcxlin the United States. Federal Communications Commission Radio Frequency Interference Statement This equipment generates”anduses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception. It has been type tested and found to ccnrrly with the limits for a Class B computing devicein accordance withthe specificationsin SubpartYof Part 15of FCC Rules, which are designedto provide reasonableprotectmrtagainst suchirrterferenceirra residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ● Reorient the receiving antenna ● Relucate the computer with respect to the receiver .
    [Show full text]
  • MEMS Mirror Based Dynamic Solid State Lighting Module
    Society for Information Display 2016 International Symposium, May 24th, 2016, San Francisco, CA MEMS Mirror Based Dynamic Solid State Lighting Module Abhishek Kasturi, Veljko Milanovic, James Yang Mirrorcle Technologies, Inc., Richmond CA Abstract Figure 1a,b images show a comparison of some sample content A novel dynamic solid state lighting (SSL) module is projected to the transparent film and a phosphor plate, demonstrated, allowing users to program the direction, brightness, respectively. Content is projected with a 40Hz refresh rate and divergence and shape of a projected white light in a variety of emission is mostly white. Significant brightness increase was lighting applications. The module is enabled by a fast beam- achieved by aluminum-mirror backing of the thin films. steering MEMS mirror with high optical power handling. In order a) b) to produce and project bright white light, the module illuminates a phosphor target with a high power laser of several Watts. A projection lens projects the phosphor target into a cone of light of up to 60°. This light projection is arbitrarily shaped and dynamically programmable by controlling a MEMS mirror scan head to address specific portions of the phosphor target. An adjustable focus lens in the scan head further allows control of Transparent emissive film Phosphor sample projected beam divergence. Successful prototypes were demonstrated with both a single 445nm laser diode source (2.5W Figure 1. Examples of monochrome vector content laser power) and with a dual (combined) laser diode sources displayed on emissive films, excited by a 405nm laser. (5.5W laser power). While the prototypes have to date been limited a) b) by available power of the laser sources, it is estimated that the novel MEMS mirror scan head design allows >10W (CW) operation on a 2mm mirror without multilayer dielectric coatings.
    [Show full text]
  • Standard Documents : Laser Printing Wide Format : L.E.D
    STANDARD DOCUMENTS : LASER PRINTING for standard sheet sizes up to 12 x 18 inches PRINTER COLOR MODE PAPER 8.5 x 11 11 x 17 12 x 18 printLab-Color-Laser Color 24/60#T Cougar Digital .50 1.00 1.00 printLab-B&W-Laser B&W 20/50#T copy paper free free n/a SPECIALTY MEDIA SPECS 8.5 x 11 11 x 17 12 x 18 HAMMERMILL COLOR COPY 60#C, Extra-Heavy .25 .50 .50 DOMTAR COUGAR DIGITAL 80#C, Cardstock .25 .50 n/a Also: 70#T, laser gloss, transparency, and vellum / strathmore drawing / colored copy papers — sizes & prices vary WIDE FORMAT : L.E.D. PRINTING toner-based printing on roll media up to 36 inches wide PRINTER OUTPUT PAPER sq.ft. Arch-C Arch-D Arch-E printLab_Color-LED 4-Color Bond 1.33 4.00 8.00 16.00 Gloss 2.00 6.00 12.00 24.00 Presentation 2.00 6.00 12.00 24.00 Vellum 2.00 6.00 12.00 24.00 Banner 2.50 7.50 15.00 30.00 printLab_B&W-LED B&W Bond .50 1.50 3.00 6.00 WIDE FORMAT : INKJET PRINTING aqueous pigment printing on rolls & sheets up to 60 inches wide PRINTER OUTPUT PAPER sq.ft. C/18x24 D/24x36 E/36x48 printLab_Color-Inkjet 8-Color Coated 3.33 10.00 20.00 40.00 Photo Satin 4.00 12.00 24.00 48.00 Photo Gloss 4.00 12.00 24.00 48.00 printLab-E9800* 8-Color for high-resolution photos and sheet media up to 44” wide ADDITIONAL SERVICES finishing options & other stuff we offer 3D PRINTING: Prusa i3 MK3s—save as .STL, fully-enclosed; min.
    [Show full text]
  • BE06LU11 • USB Interface • Lightscribe Disc Labeling
    6X EXTERNAL BLU-RAY DISC REWRITER • 6x External Blu-ray Disc Rewriter • Compatible with all current disc formats • 6x BD-R Read/Write speed BE06LU11 • USB Interface • LightScribe Disc Labeling SUPER MULTI BLUE Blu-ray Disc™ is the next generation in optical storage, offering 25GB and 50GB of storage capacity on a disc. SERIAL ata TECHNOLOGY Serial ATA is a 1.5Gbps evolutionary replacement for the Parallel ATA physical storage interface used to connect storage devices, such as hard disks, DVD and CD rewriters to the PC motherboard. Serial ATA is scalable, enables design of smaller PCs, and will allow future enhancements to the computing platform. LIGHTSCRIBE Create silkscreen-quality disc labels direct from your PC with LightScribe. LightScribe is a laser printing technology on the exclusive LightScribe disc. It provides a complete, convenient, cost-effective system for labeling discs. Simply “burn” the data to a LightScribe disc, flip the disc over, place it back in the drive, and “burn” the label. BE06LU11 6X EXTERNAL BLU-RAY DISC REWRITER TECHNICAL SPECIFICATIONS General data transfer rate Interface USB BD-ROM 215.79 MB/s (6x) Max. supp O rted discs DVD-ROM 22.16 MB/s (16x) Max. DVD-ROM (Single/Dual) • CD-ROM 6,000 kB/s (40x) Max. DVD-RW • AVeraGE access TIME DVD-R • BD-ROM 180 msec (Typical) DVD+RW • DVD-ROM 160 msec (Typical) DVD+R • CD-ROM 150 msec (Typical) DVD+R Double Layer • PERFORMANCE DVD-R Dual Layer • Buffer Capacity 4 MB DVD-RAM • WRITING METHODS CD-Digital Audio & CD-Extra • CD Disc-at-once, Track-at-once, CD-Plus • Session-at-once,
    [Show full text]
  • Restricted Energy Transfer in Laser Desorption of High Molecular Weight Biomolecules
    Scanning Microscopy Volume 5 Number 2 Article 3 4-20-1991 Restricted Energy Transfer in Laser Desorption of High Molecular Weight Biomolecules Akos Vertes University of Antwerp, Belgium, [email protected] Renaat Gijbels University of Antwerp, Belgium Follow this and additional works at: https://digitalcommons.usu.edu/microscopy Part of the Biology Commons Recommended Citation Vertes, Akos and Gijbels, Renaat (1991) "Restricted Energy Transfer in Laser Desorption of High Molecular Weight Biomolecules," Scanning Microscopy: Vol. 5 : No. 2 , Article 3. Available at: https://digitalcommons.usu.edu/microscopy/vol5/iss2/3 This Article is brought to you for free and open access by the Western Dairy Center at DigitalCommons@USU. It has been accepted for inclusion in Scanning Microscopy by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. Scanning Microscopy, Vol. 5, No. 2, 1991 (Pages 317-328) 0891-7035/91$3.00+ .00 Scanning Microscopy International, Chicago (AMF O'Hare), IL 60666 USA RESTRICTED ENERGY TRANSFER IN LASER DESORPTION OF HIGH MOLECULAR WEIGHT BIOMOLECULES Akos Vertes* and Renaat Gijb els Departm ent of Chemistry, University of Antwerp (U.I.A.), Universiteitsplein 1, B-2610 Wilrijk (Belgium) (Received for publication November 15, 1990, and in revised form April 20, 1991) Abstract Introdu ction Producing ions from large molecules is of distin­ With the growing importan ce of biomedical investi­ guished importance in mass spectrometry. In our present gations in organic analysis the emphasis has been shift­ study we survey different laser desorption methods in ing to the detection and structure determination of ever view of their virtues and drawbacks in volatilization and larg er and more complex molecules.
    [Show full text]
  • Wavelength-Tunable Ion Laser Systems
    38Ch_AirCooledIonLsrs_f_v3.qxd 6/8/2005 11:19 AM Page 38.4 Diode-Pumped Solid-State Lasers Wavelength-Tunable Ion Laser Systems $ Selectable wavelengths ranging from violet to red SPECIFICATIONS: Air-Cooled Ion Lasers Air-Cooled $ Output power to 195 mW WAVELENGTH-TUNABLE ION LASER SYSTEMS $ Highest output power for its size Transverse Mode : TEM00 (except as noted) Longitudinal Mode Spacing : $ Switching power supplies with power-factor correction 35 (X)AP 321: 469 MHz $ CE, IEC, and CDRH compliant 35 (X)AP 431: 349 MHz These air-cooled ion laser systems are compact devices that pro- Coherence Length : ~10 cm duce high-quality, linearly polarized output that can be tuned over Polarization : Linear (vertical85°) with >250:1 extinction ratio a wide variety of wavelengths. The 35 LAP 321 and 35 MAP 321 are Pointing Stability : <30 mrad°C extremely compact argon-ion lasers, less than 15 inches in length Power Stability : 80.5% over a 2-hour period (excluding cables). The somewhat longer 35 LAP 431 and Optical Noise (%p-p @ <100 kHz / <1 MHz) : 35 MAP 431 are argon-ion lasers that produce as much as 195 mW Argon: 488 nm, 4 / 6; 514 nm, 4 / 6 Helium Cadmium Lasers multimode and up to 130 mW with a clean Gaussian TEM00 mode. Argon/Krypton: 488 nm, 5 / 7; 514 nm, 6 / 10; The model 35 KAP 431 is a mixed-gas (argon/krypton) laser with 568 nm, 3 / 6; 647 nm, 5 / 8 nine selectable wavelengths ranging from 476 nm (violet) to 676 nm Warm-up Time : <15 minutes from cold start (red).
    [Show full text]
  • Argon-Ion and Helium-Neon Lasers
    Argon-Ion and Helium- Neon Lasers The one source for gas lasers What makes Lumentum the choice for argon-ion and helium-neon (HeNe) lasers? Whether you are involved in medical research, semiconductor manufacturing, high-speed printing, or Your Source for another demanding application, we have the expertise, commitment, and technology to ensure you get the best solution for your need. With more than 35 years of experience, we have an unmatched Successful gas laser production requires extraordinary care understanding of the gas laser market. That understanding has during the manufacturing process. Every individual throughout led us to devote extensive resources to help establish a premier, each production stage, from engineering and procurement to Gas Lasers high-volume manufacturing facility. Located in Thailand, the manufacturing and quality control, is attuned to the highly facility produces lasers of the highest standard. And we maintain sensitive nature of the applications for which these products are that standard through regional quality management, on-site used. Consequently, we can assure the steady supply of quality supplier quality engineering, and regular quality audits. products to our customers around the globe. Our products are being used in customers’ new systems and as replacement components in the large installed base of existing systems. 2 3 Key Gas Laser Applications Known for their longevity and predictable electrical and optical performance characteristics, our lasers are being used in a wide variety of applications. Medical Research University, medical, and government laboratories on the cusp of new discoveries rely on instruments designed with Lumentum argon-ion and HeNe lasers for cell mapping, genome analysis, and DNA sequencing.
    [Show full text]
  • Conduction Laser Welding
    JOSEFINE SVENUNGSSON Licentiate Thesis Production Technology 2019 No. 27 Conduction laser welding modelling of melt pool with free surface deformation Conduction laser welding Laser welding is commonly used in the automotive-, steel- and aerospace industry. However, deeper knowledge is still needed to better control this process, improve prod- DEFORMATION POOL WITH FREE SURFACE WELDING - MODELLING OF MELT LASER CONDUCTION modelling of melt pool with free surface deformation uct quality, produce components with less material, reduce production errors and thus contribute to sustainable manufacturing production. Process knowledge can be gained through modelling and experimental observation. The present study therefore aimed at developing and testing a simulation model dedicated to the thermal flow and free surface deformation of the melt pool formed during laser welding. The physics implemented in the model includes the thermocapillary force that accounts Josefine Svenungsson for the effect of temperature gradients on surface tension, the solid-liquid phase change, and the convection of fusion enthalpy. From the computed test cases, it was found that the convection of fusion enthalpy should not be neglected. It was also found that the numerical implementation of the thermocapillary force can lead to unphysical solutions. Therefore, it is recommended to select an approach consistent for all the surface forces of the problem. Finally, free surface oscillations known from experiments to occur are also computed outputs of the model. However, it remains to investigate whether these oscil- lations are, or not, disturbed by numerical noise. 2019 NO.27 ISBN 978-91-88847-35-5 (Printed version) ISBN 978-91-88847-34-8 (Electronic version) 118526_HV_Josefine_Svenungsson_omslag_190516_v2.indd 1 2019-05-16 09:32:15 Tryck: BrandFactory, maj 2019.
    [Show full text]
  • Air-Cooled Argon-Ion Laser Heads in Cylindrical Package 2213 Series
    Air-Cooled Argon-Ion Laser Heads in Cylindrical Package 2213 Series www.lumentum.com Data Sheet Air-Cooled Argon-Ion Laser Heads in Cylindrical Package Lumentum’s air-cooled argon lasers are designed for complex, high-resolution OEM applications such as flow cytometry, DNA sequencing, graphic arts, and semiconductor inspection. Symmetric design and axial airflow in the cylindrical argon ion Key Features laser heads provide the best mechanical package to ensure • Integral-mirror, metal-ceramic construction optimum beam-pointing stability and fast warm-up. Both initial • Hands-off operation installation and routine maintenance are straightforward due to • Ultralow noise tight production control of optical and mechanical tolerances. Blower-induced mechanical vibration is virtually eliminated • Fast warm-up through the use of flexible ducting between the laser head and • Rugged construction blower assembly. • Vibration isolation • Ultrastable resonator and beam pointing Applications • DNA sequencing • Flow cytometry • Confocal microscopy • Semiconductor inspection • Hematology • High-speed printing • Photo processing Compliance • CE per specification EN55011 and EN50082-2 • UL 1950 and 1262 • CDRH 21 CFR 1040.10 • CUL • EN60825-2 • EN60950, IEC 950 and EN61010 www.lumentum.com 2 Air-Cooled Argon-Ion Laser Heads in Cylindrical Package 2213 Series Cylindrical Head (Specifications in inches unless otherwise noted. E-vector is aligned with the umbilical cable.) 11.5 5.37 72.0 MOUNTING AIR INTAKE AREAS 3.88 BEAM AIR .50 OUTPUT EXHAUST 1.0 4X 4-40
    [Show full text]
  • Services & Capabilities
    Services & Capabilities V1.0 Design & Production Support or supplement in/outside creative staff Grand Format Printing Create & maintain brand integrity across multiple media 7 color UV printer with separate channel for white ink Adhere to graphic standards or develop original concepts 540 dpi production mode/1080 dpi available (6-8pt type) Cross-media marketing services: more touch-points to Prints on rigid and flexible substrates up to 2” thick and increase response (email, SMS & PURLs) 126.5” wide True hybrid machine: prints flat boards and rolls Digital Imaging Speed: up to 900 square feet per hour and (22) 4’ x 8’ Complete file preparation services on Mac and PC platforms boards per hour Trapping and imposition using Kodak Prinergy Connect Banners, window clings, self-adhesive vinyl, paper, fabric, Online file submission via secure FTP or mesh, rigid POP, metal, glass and indoor/outdoor graphics PrismaExchange.com Specialized router for a-standard shapes Soft proofing via PrismaExchange.com Press match proofs using Kodak Matchprint proofing Bindery & Finishing system Embossing Digital low resolution proofs using automated 2-sided Die-cutting proofer Drilling Automated computer-to-plate process Foil stamping Kodak Maxtone (AM) and Staccato (FM) Screening options Folding Reflective and transparency scanning Gluing Quality control using spectrophotometers for proofing, Laminating plating and press Mounting Data archiving with off-site storage CIP3 servers to generate ink key settings for press Perfect
    [Show full text]
  • Oki C3400 Driver Download DRIVER OKI C3450 PRINTER for WINDOWS XP
    oki c3400 driver download DRIVER OKI C3450 PRINTER FOR WINDOWS XP. If I use it includes print directly to the internet. Easy-PhotoPrint has a nice intuitive easy to use interface so that everybody, novice or not, can use it. This driver works with OKI color and mono printers/MFPs. The automatic settind will be appropriate in most cases. See more ideas about Printer ink cartridges, Laser toner and Printer. Main computer original equipment manufacturers OEMs may vary slightly. I am happy with the c5500. And gather information from your OKI? About the initial setup with it. STAMPANTI E MFP problems OKI C3300 I am trting I have installed the most recent driver. If I will however depend on 32-bit versions and the device. From basic office supplies, such as printer paper and labels, to office equipment, like file cabinets and stylish office furniture, Office Depot and OfficeMax have the office products you need to get the job done. Driver Mi Redmi 6 Usb For Windows 8. Easy-PhotoPrint 3 Preface This means that support web-browsing. 80873. After going into the OKIUSER then into the toner sensor menu, changing from enable to disable, I have tried pressing the online, Cancel & - at the same time as suggested earlier in this thread for the 5400 , starting with online, and it will not accept the command and continues to default to enable. OKI C3450 - driver software manual installation guide zip OKI C3450 - driver software driver-category list Periodic pc failures may also be the result of a bad or out-of-date OKI C3450, since it influences other programs that could trigger such a clash, that only a shut down or a enforced reactivation may solve.
    [Show full text]
  • Optical Coherence Tomography for Characterization of Nanocomposite Materials Karlsruhe Series in Photonics & Communications, Vol
    Karlsruhe Series in Photonics & Communications, Vol. 25 Simon Schneider Optical coherence tomography for characterization of nanocomposite materials Optical coherence tomography for nanocomposite characterization nanocomposite for tomography coherence Optical Simon Schneider Simon 25 Simon Schneider Optical coherence tomography for characterization of nanocomposite materials Karlsruhe Series in Photonics & Communications, Vol. 25 Edited by Profs. C. Koos, W. Freude and S. Randel Karlsruhe Institute of Technology (KIT) Institute of Photonics and Quantum Electronics (IPQ) Germany Optical coherence tomography for characterization of nanocomposite materials by Simon Schneider Karlsruher Institut für Technologie Institut für Photonik und Quantenelektronik Optical coherence tomography for characterization of nanocomposite materials Zur Erlangung des akademischen Grades eines Doktor-Ingenieurs von der KIT-Fakultät für Elektrotechnik und Informationstechnik des Karlsruher Instituts für Technologie (KIT) genehmigte Dissertation von Dipl.-Ing. Simon Schneider Tag der mündlichen Prüfung: 29. November 2019 Hauptreferent: Prof. Dr.-Ing. Christian Koos Korreferenten: Prof. Dr.-Ing. Dr. h.c. Wolfgang Freude Prof. Dr. rer. nat. Wilhelm Stork Impressum Karlsruher Institut für Technologie (KIT) KIT Scientific Publishing Straße am Forum 2 D-76131 Karlsruhe KIT Scientific Publishing is a registered trademark of Karlsruhe Institute of Technology. Reprint using the book cover is not allowed. www.ksp.kit.edu This document – excluding the cover, pictures and
    [Show full text]